William d



(No Model.)

'W'. D. YOUNG.

HORSESHDE MAGHINE.

No. 315,206. Patented Apr. 7, 1885.

MATH; 55 E- N. PETERS, Pham-Limogrnphnr, wnwngmn D. C.

UNITED STATES'V f PATENT OFFICE.

VILLIAM D. YOUNG, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO SHOENBERGER t OF SAME PLACE.

HoRsEsHoE-MACHINE- i SPECIFICATION for-ming part of Letters Iatent No. 315,206, dated April '7, 188s.

Appunti@ fred August 9, v1884. (No model.)

To all whom, it may concern: Y

Be it known that I, WILLIAM I). YOUNG, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement `in Horseshoe-Machines; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which- Figure l is a plan view of my improved machine, the parts being in the position occupied when the blanks are fed thereto. Fig. L Lis a similar view of the same when the parts are in position at the end of the bending stroke. Figs. 2 and 3 are vertical longitudinal sectionsl on the line x a of Fig. 4, showing the parts of the machine in intermediate positions between those shown in Figs. 1 and 4.

Like letters of reference indicate like parts wherever` they occur.

Uponsuitable bed-plate, k, provided with ways or grooves t' z', is a traveling carrier, G, which is adapted to slide backwardY and Vforwardupon said ways or grooves. y

Pivoted on the carrier g is a pair of bending-jaws, h, each of which has an arm or lever, h, extending backward toward the rear part of the carrier; and situate back of the carrier G upon the bed-plate 7c is a sliding cross-head, F, which moves in suitable guides, and is connected with a crank, f, which actuates it. and gives it a reciprocating motion.` The jaws h are connected separately with theV cross-head F by arms or rods e, pivoted to the jaws at points g outside of the pivotal points c of the jaws, and pivoted to the cross-head at points g2. The carrier G is slotted longitudinally, as at a3, and projecting upward therethrough to the sides of the'arms hf of the jaws 7L are guidepins a', which are preferably of a peculiar construction, which I will now describe. Guide 'frods or bars a a are movably mounted within the slots or grooves a3 in the carrier G, lengthwise of the machineand Vback of the carrier each bar hasan angular downwardly-projecting-arm, a2, and at its front end is provided x with an upwardly-projecting arm, which I into the body of the carrier G. (See Fig. 2.) Suitable springs, c, adjusted on each of the rods c3 c3, between the arms ai and nuts c', placed on the ends of the rods c, tend by their pressure to force the bars a toward the carrier G, and the pins a against the ends of notches h2, made at the outer ends of the arms 7L. rIhe arms a2 extend below the level of the carrier G to points opposite the bed-plate k, and each' somewhat before the crank-arm f hascompleted its for ward stroke. Vhen this happens, the forward motion of the bars a is checked,

vand the carrier G moves onward without them vuntil the crank-arm f begins its backward ing support, i", in front of the carrier G, is a mandrel, i2, of the shapeof the inside of the Sh0e.` It is in the same horizontal plane with the bending-jaws,and its lower side is vslightly higher than the upper face of the carrier G, so that the lattenmay be able to pass under it without binding. Directly below the mandrel a hole is made the bed-plate, through which the bent blanks are discharged after the carrier has been withdrawn. v

` Ahead of the jaws h on the carrier G, but to one side of the same, is alaterally-adjustab le stop o, so situate that a straight horseshoeblank maybe placed on the carrier with one ,end against the stop and the middle part directly. opposite the mandrel t. The stop o` should be made adjustable, so as to adapt the machine to use in bending blanks of any desired length. Y 4 i i I have already described the arms e as being continuous and pivoted to the cross-head F and to the jaws h. is operative and useful; `but I prefer to use the modification which I have illustrated inthe drawings. rIhe arms e are there represented` as being fastened to toggles k', one arm of each the other arm to the sliding head G at g3.

This mode of Varrangement.

roo .toggle being pivoted to one ofthe jaws h and The movement of the parts just described in Fig. 1, the cross-head F advances and pushes the carrier G forward by means of the arms e. During the movement the jaws 7L are held open by the guide-pins a', which abut against the sides of the jaws in the notches h2 until the movement of the carrier G causes the inner corners, h3, of the bending-jaws to encounter the shoe-blank which has been adjusted opposite the mandrel, and forces the ends of the blank inward and around the surface ofthe mandrel. As this is being done the stop m encounters the end of the bed-plate 7c,(see Fig.r2,) and the advance of the pins a stops, while the jaws and carrier continue to move until the jaws are released from the pins, and t-he blank being now pressed tightly against the mandrel, and into the inner face of the rgripping-jaws h, the advance of the carrier G will have been completely checked, (see Fig. 3,) and any further forward motion of the crosshead F will act through the toggle-joints la upon the jaws lz, causing the toggle-joints to straighten and to turn the jaws upon their pivots s o that they may close around the mandrel and upon the blank. rlhe crank f will then be at the end of its stroke,and the parts will then be in the relative positions shown in Fig. 4. The power of the crank f increases toward the end of its stroke, and this power is communicated through the cross-head F, arms e, and jaws 7L to the blank, thus wrapping it strongly around the mandrel and thickening up its ends in an effective and desirable manner. As soon as the sliding head F begins to be retracted with the reverse movement of the 'crankf,it acts uponthe toggles 7c, opens the jaws h, and pulls them back from the mandrel with the carrier G. During the interval between the striking of the stops m against the bed-plate and the end of the advance of the carrier G the springs cz have been compressed, and as the carrier moves backward these springs held the guide-bars a stationary until their ends a. engage with the outer sides of the arms h of the gripping-j aws. rlhe bars a then begin to partake of the motion of the carrier G, as before described.

I have said that the forward motion ofv the carrier G is checked by the jaWs coming into. contact with the horseshoe-blank, and forcing it against the mandrel i. This is the simplest method of stopping the carrier and of causing the lateral squeezing of the jaws; but for certainty and accuracy of actionI prefer to use a device which is shown in the several figures of the drawings. A vertical plate or rod, j, is secured to the outer end of the carrier G and projects downward therefrom. The object of this plate is to hold a stop-bar,b,which extends inwardfrom the plate and at right angles therefrom toward the end of the bedplate k, or toward the end of a slot made therein. The stop-barb preferably passes through the plate j, and is secured thereto by a screwthread, so that its inner extremity may be l adjustable toward or away-from the end of the bed-plate. It can thus be set in such manner as to strike the bed-plate at the desired time, and thereby suddenly stop the motion of the carrier G,to which it is attached. (See Fig. 3.) Thus suppose the stroke of the crank-arm f vand cross-head F to be twenty-two inches, the stops m should be so adjusted that they will engage the bed-plate lc when the sliding head has traveled about nineteen inches, and the stops b are preferably arranged so that they may strike the bed-plate very soon afterward, say, at twenty inches of the stroke. rlhe carrier G then stops, and the remaining two up with the lateral gripping action of the jaws the ends of the same.`V`

W'hen the above proportion of size of the parts is employed, I prefer to make the notches h3 a little less than an inch in length, so as to release the jaws h just before the stoppage of the carrier G. On the back-stroke of the cross head F, during the first two inches thereof, the carrier G remains stationary, and the movement of the cross-head merely operates on the toggles to open the jaws l1.. It then acts on the carrier and retracts it, until, at the end of the next inch, the arms t, which have been closed by the opening of the jaws 7L, have been locked within the pins a, and the bars a begin to move back with the carrier, as above described. The shape of the mandrel 'i2 prevents the horseshoe-blank from being drawn back with the retraction of the gripping-jaws' h; but as soon as thejaws and the carrier Ghave been moved away from the mandrel the blank may be stripped therefrom through a hole-in the bed-plate, or in any other desirable manner.

Itis obvious that by means of the adjustable stops m and j and the nuts e at the end of the spring e2, the different parts of my apparatus may be adjusted to any size of horseshoe and to operate at any desired intervals of time.

The advantages of the machine herein described are its simplicity of construction, its effective operation, and the fact that it thickens the heels ofthe shoe at the same operation and by the same means used for bending the blanks. It thereby effects a considerable savi ing of time and labor.

l do not desire to limit myself to any particular device for imparting a reciprocating motion to the sliding head F, no r to any particular form for the various parts of the machine; but

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a machine for bendinghorseshoeblanks, the combination of a sliding carrier, a mandrel, bending-jaws pivoted to the carrier, a reciprocating head for actuating the carrier, and connecting mechanism for imparting a lateral movement to the jaws from the reciprocating movement of the head, substantially asl and for the purposes specified.

inches of advance of the cross-head F is taken" upon the shoe-blank and the thickening up of ZOO IIO

2. In a machine for bending horseshoeblanks, the combination of a pa-ir of pivoted bending-dies traveling irst in right lines and then having a lateral motion, so as to bend the blank and thicken up the heel of the same, a mandrel, and mechanism, substantially as described, for imparting the double movement to the jaws, substantially as and for the purposes specified.

3. In a machine for bending horseshoeblanks, the combination of the pivoted bending-j aws, devices for imparting a reciprocating movement thereto,guides for causing the jaws to move in a right line, and devices for imparting a lateral movement to the jaws after they have passed the guides7 substantially as and for the purposes specified.

4. The combination, in a machine for bending horseshoe-blanks, of reciprocating bending-jaws having first a motion in right lines to bend the blank into U form against the mandrehand then a lateral motion to thicken up the heels of the blank and compress them about the mandrel7 With locking-bars a,which hold the jaws open during the rectilinear motion thereof and advance therewith7 said locking-bars having suitable stops, which check their motion and release the gripping-jaws at a determined period of their motion, substantially as and for the purposes described.

5. The combination of the bending-jaws h, which are pivoted upon a reciprocating carrier, with the locking-bars a, and spring c2, adapted to press said bars toward said carrier, substantially as and for the purposes described.

6. The combination, with the bending-jaws h It, of the reciprocating carrier G, a suitable stop for checking the advance of said carrier, and devices, substantially as specified, for imparting a lateral movement to the jaws when the carrier comes in contact with the stop,subst-antially as and for the purposes described.

In testimony whereof I have hereunto set my hand this 7th day of August, A. D. 1884.

IVILLIAM D. YOUNG.

Vitnesses:

W. B. CORWIN, W. BAKEWELL. 

